# # Data product developed by Dr. E. Thiemann from the # Laboratory for Atmospheric and Space Physics, Boulder, Colorado # in the frame of the PROBA2 guest investigator program. # # Please address your questions to E. Thiemann (thiemann@lasp.colorado.edu) and # to the LYRA Principal Investigator M. Dominique (marie.dominique@oma.be) # # PROBA2 data products are open to all. # Users should however refer to the following paper: http://arxiv.org/abs/1708.08833 # and acknowledge the instrument according to the rules described # at http://proba2.oma.be/data/termsOfUse in their papers and presentations # # Website reference http://proba2.oma.be/lyra/data/EarthAtmosphere/ # # Description: # Summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400 km # retrieved from LYRA data acquired during occultations by the unit 3 (backup unit) zirconium # channel (bandpass: 1-2 nm + 6-20 nm). # # Radial distance is the distance from the center of Earth expressed in km to which the density corresponds. # Density O-N2 provides the summed number density of neutral O and N2 in units of radial distance and cm^-3. # The systematic error is a signed value (asymmetric) in fractional units and is primarily from the error made by # assuming that the absorption cross-sections of O and N2 are equal; a secondary source of systematic error is # from using a single-scale height atmosphere in the reference atmosphere used by the retrieval algorithm. # The random error is an unsigned value (to be applied symmetrically to the measurement) in fractional # units and gathers the uncertainties from solar spectra, solar variability and measurement noise. # Both uncertainties are described in http://arxiv.org/abs/1708.08833. # The Longitude and Latitude (in degrees) columns refer to the tangential point along the # line-of-sight, where most of the absorption occurs. # # Scale height = 49.444870 km # Date (UTC) = 2011-12-08T10:12:30.435 # Date (julian) = 2455903.92535226 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6502.8435 1.3722121e+11 0.058517202 0.033140661 -36.942795 49.052696 6504.8794 1.1999837e+11 0.066376979 0.033754574 -37.035108 48.963934 6506.9153 1.0527000e+11 0.074361960 0.034368486 -37.124836 48.875164 6508.9511 9.3243646e+10 0.082598364 0.034982399 -37.213610 48.786390 6510.9870 8.2545855e+10 0.091068315 0.035596312 -37.302383 48.697617 6513.0229 7.3321536e+10 0.099844817 0.036210225 -37.401291 48.598709 6515.0588 6.5178057e+10 0.10892508 0.036824138 -37.501149 48.498851 6517.0946 5.8135729e+10 0.11836203 0.037438051 -37.596451 48.403549 6519.1305 5.2640699e+10 0.12837597 0.038051964 -37.685213 48.314787 6521.1664 4.8178456e+10 0.13895601 0.038665877 -37.773975 48.226025 6523.2023 4.4102709e+10 0.14655695 0.039229242 -37.866956 48.130670 6525.2381 4.0069101e+10 0.15225647 0.039755037 -37.962820 48.030811 6527.2740 3.6305545e+10 0.15686962 0.040915406 -38.057718 47.931958 6529.3099 3.3104761e+10 0.16039958 0.042729407 -38.142931 47.843196 6531.3458 3.0593030e+10 0.16396322 0.045731940 -38.228143 47.754434 6533.3816 2.8416238e+10 0.16750569 0.047681772 -38.316274 47.663725 6535.4175 2.6244564e+10 0.16911619 0.048043181 -38.412137 47.567862 6537.4534 2.4163794e+10 0.17077030 0.048898979 -38.508001 47.471999 6539.4893 2.2254103e+10 0.17145200 0.050235871 -38.592929 47.381598 6541.5251 2.0721407e+10 0.17061139 0.051156230 -38.674601 47.292824 6543.5610 1.9414938e+10 0.16919672 0.051529134 -38.756273 47.204050 6545.5969 1.8076904e+10 0.16750711 0.052460915 -38.847679 47.104697 6547.6328 1.6705878e+10 0.16619906 0.053527994 -38.939550 47.004839 6549.6686 1.5381666e+10 0.16477458 0.054647680 -39.026818 46.909983 6551.7045 1.4263604e+10 0.16340232 0.055483048 -39.108479 46.821221 6553.7404 1.3351710e+10 0.16168942 0.054962881 -39.190140 46.732459 6555.7763 1.2526760e+10 0.16009807 0.054201113 -39.278276 46.636658 6557.8121 1.1685597e+10 0.15883526 0.053357053 -39.370146 46.536799 6559.8480 1.0878550e+10 0.15703717 0.052291463 -39.460216 46.437927 6561.8839 1.0159134e+10 0.15487972 0.050937117 -39.538326 46.345614 6563.9198 9.5863835e+09 0.15247567 0.048864403 -39.616436 46.253301 6565.9556 9.0834254e+09 0.15073634 0.047233247 -39.697619 46.158612 6567.9915 8.5581889e+09 0.14973429 0.045778830 -39.785508 46.058738 6570.0274 8.0214390e+09 0.14867311 0.044906160 -39.873397 45.958865 6572.0633 7.4823359e+09 0.14725799 0.044193920 -39.953355 45.868004 6574.0991 7.0264063e+09 0.14512510 0.042807384 -40.031466 45.779242 6576.1350 6.6458159e+09 0.14311297 0.041215977 -40.109577 45.690480 6578.1709 6.3211078e+09 0.14073319 0.038379743 -40.187688 45.601718 6580.2068 6.0469310e+09 0.13805959 0.036329662 -40.265799 45.512956 6582.2427 5.7662642e+09 0.13538925 0.035227763 -40.344937 45.422218 6584.2785 5.4615756e+09 0.13275163 0.034363787 -40.428818 45.322360 6586.3144 5.1353032e+09 0.13053332 0.033167232 -40.512699 45.222501 6588.3503 4.8167409e+09 0.12903284 0.033262954 -40.590293 45.130127 6590.3862 4.5568673e+09 0.12714330 0.030343761 -40.664852 45.041365 6592.4220 4.3374904e+09 0.12516215 0.027663607 -40.739412 44.952603 6594.4579 4.1241884e+09 0.12309609 0.025921156 -40.821980 44.854308 6596.4938 3.9041581e+09 0.12077183 0.025725029 -40.905874 44.754434 6598.5297 3.6827183e+09 0.11920012 0.025154289 -40.985196 44.658503 6600.5655 3.4998759e+09 0.11898468 0.026152503 -41.056205 44.569741 6602.6014 3.3512258e+09 0.11815912 0.027003417 -41.127215 44.480979 6604.6373 3.2043261e+09 0.11703407 0.026449674 -41.205154 44.386244 6606.6732 3.0425687e+09 0.11612762 0.026294320 -41.289035 44.286385 6608.7090 2.8651786e+09 0.11345160 0.023713625 -41.372468 44.186912 6610.7449 2.7085400e+09 0.11056701 0.024714723 -41.443478 44.098150 6612.7808 2.5833697e+09 0.10909194 0.023737379 -41.514488 44.009388 6614.8167 2.4719976e+09 0.10767386 0.023377845 -41.587435 43.918204 6616.8525 2.3611633e+09 0.10596583 0.023416105 -41.667322 43.818346 6618.8884 2.2346572e+09 0.10502193 0.024441652 -41.747210 43.718487 6620.9243 2.1172899e+09 0.10395492 0.025065048 -41.820759 43.626551 6622.9602 2.0262862e+09 0.10210932 0.024502429 -41.891778 43.537777 6624.9960 1.9466684e+09 0.10018851 0.025395484 -41.962797 43.449003 6627.0319 1.8702843e+09 0.097517706 0.025329138 -42.038195 43.346680 6629.0678 1.7828794e+09 0.095987377 0.026096848 -42.114087 43.242828 6631.1037 1.6880679e+09 0.094085132 0.025941296 -42.189979 43.140553 6633.1395 1.5996853e+09 0.092819761 0.026176615 -42.265871 43.040695 6635.1754 1.5198034e+09 0.091579736 0.026426094 -42.341763 42.940836 6637.2113 1.4482695e+09 0.090398463 0.026057928 -42.413303 42.850870 6639.2472 1.3903139e+09 0.089653837 0.025539732 -42.484313 42.762108 6641.2830 1.3372659e+09 0.090218031 0.025149262 -42.555390 42.672513 6643.3189 1.2786122e+09 0.089681560 0.025240771 -42.627288 42.572655 6645.3548 1.2183896e+09 0.088780433 0.025617892 -42.699187 42.472796 6647.3907 1.1586247e+09 0.087745735 0.026643469 -42.768548 42.379279 6649.4265 1.1103488e+09 0.086697792 0.027045716 -42.836006 42.290517 6651.4624 1.0670792e+09 0.086173455 0.026838544 -42.903465 42.201755 6653.4983 1.0249959e+09 0.085548829 0.027780074 -42.977299 42.104605 6655.5342 9.8223723e+08 0.083967104 0.027830937 -43.053204 42.004731 6657.5700 9.3583704e+08 0.082283496 0.029562348 -43.128101 41.904861 6659.6059 8.8990188e+08 0.080755325 0.031708202 -43.199999 41.805003 6661.6418 8.4016738e+08 0.079310478 0.032861831 -43.271897 41.705144 6663.6777 7.9979683e+08 0.077905382 0.032295413 -43.337818 41.613588 6665.7135 7.6825408e+08 0.077567247 0.027377955 -43.401727 41.524826 6667.7494 7.3970518e+08 0.076698044 0.027378734 -43.465636 41.436063 6669.7853 7.1583132e+08 0.075671446 0.027549144 -43.536988 41.336963 6671.8212 6.8236465e+08 0.075246742 0.026877051 -43.608887 41.237104 6673.8571 6.4892968e+08 0.074330768 0.028741001 -43.680785 41.137245 6675.8929 6.1799435e+08 0.072107888 0.031508640 -43.752683 41.037387 6677.9288 5.8164253e+08 0.071112073 0.031037828 -43.824582 40.937528 6679.9647 5.5974197e+08 0.071281003 0.029470605 -43.885809 40.844646 6682.0006 5.4256575e+08 0.072013716 0.030424966 -43.946167 40.752333 6684.0364 5.2126525e+08 0.072277323 0.032655940 -44.007771 40.659205 6686.0723 5.0779496e+08 0.071706187 0.033803152 -44.079670 40.559345 6688.1082 4.8220355e+08 0.069448742 0.033810162 -44.151569 40.459486 6690.1441 4.6100871e+08 0.067764523 0.033099355 -44.221058 40.359618 6692.1799 4.4589533e+08 0.066786266 0.032556385 -44.288972 40.259745 6694.2158 4.2332047e+08 0.066016750 0.030958562 -44.356884 40.159872 6696.2517 4.0625763e+08 0.065879632 0.029780354 -44.424789 40.060014 6698.2876 3.8610631e+08 0.065052620 0.030612524 -44.492693 39.960155 6700.3234 3.6618602e+08 0.063546127 0.030907618 -44.560597 39.860297 6702.3593 3.5112444e+08 0.062393625 0.033163640 -44.628500 39.760438 6704.3952 3.3693574e+08 0.062695223 0.036371610 -44.695357 39.661626 6706.4311 3.2556913e+08 0.062542850 0.039196631 -44.752164 39.572864 6708.4669 3.1694483e+08 0.062087668 0.040552055 -44.808972 39.484102 6710.5028 3.0728719e+08 0.060715682 0.040594914 -44.868862 39.392258 6712.5387 2.9894177e+08 0.058730989 0.042830121 -44.936767 39.292399 6714.5746 2.8620215e+08 0.056794476 0.047346604 -45.004672 39.192539 6716.6104 2.7474231e+08 0.055001510 0.049300479 -45.069484 39.092681 6718.6463 2.6455453e+08 0.052843419 0.050818999 -45.133393 38.992822 6720.6822 2.5359449e+08 0.052842875 0.050340723 -45.197303 38.892963 6722.7181 2.4424027e+08 0.052285308 0.049717489 -45.261212 38.793105 6724.7539 2.3251802e+08 0.048853702 0.043630776 -45.325122 38.693246 6726.7898 2.2185228e+08 0.046900500 0.040958491 -45.389038 38.593376 6728.8257 2.1481674e+08 0.046708018 0.040798375 -45.452957 38.493502 6730.8616 2.0757146e+08 0.045182515 0.041560216 -45.516874 38.393632 6732.8974 2.0145508e+08 0.044121093 0.043905425 -45.580784 38.293773 6734.9333 1.9512275e+08 0.044198425 0.049297444 -45.644694 38.193914 6736.9692 1.8822109e+08 0.045890064 0.054019100 -45.708603 38.094055 6739.0051 1.8218547e+08 0.046652286 0.062832755 -45.772513 37.994196 6741.0409 1.7315958e+08 0.045615943 0.065875467 -45.836422 37.894338 6743.0768 1.6646233e+08 0.042204031 0.071565668 -45.900332 37.794479 6745.1127 1.5640557e+08 0.039283898 0.078614263 -45.964241 37.694620 6747.1486 1.4838584e+08 0.034772770 0.067310014 -46.025142 37.594762 6749.1844 1.4290079e+08 0.034469247 0.072227432 -46.085058 37.494903 6751.2203 1.3674326e+08 0.031573947 0.073804825 -46.145971 37.395045 6753.2562 1.3515062e+08 0.029174186 0.073806393 -46.209881 37.295186 6755.2921 1.3358129e+08 0.027234704 0.074477290 -46.273790 37.195327 6757.3279 1.2831753e+08 0.025207218 0.075744818 -46.334718 37.095468 6759.3638 1.2253835e+08 0.026066610 0.075907751 -46.394633 36.995609 6761.3997 1.1588948e+08 0.027635748 0.078001248 -46.456627 36.892285 6763.4356 1.0916997e+08 0.031888807 0.077764320 -46.525103 36.778159 6765.4715 1.0649751e+08 0.033861032 0.079617258 -46.593132 36.664778 6767.5073 1.0172884e+08 0.032384676 0.081407691 -46.653048 36.564919 6769.5432 97119968. 0.027857184 0.085771766 -46.712964 36.465060 6771.5791 94867944. 0.024160944 0.090709659 -46.770687 36.365202 6773.6150 92547699. 0.020462672 0.095647552 -46.826608 36.265343 6775.6508 90267634. 0.016761606 0.10058545 -46.882710 36.165484 6777.6867 85634090. 0.013026620 0.10552334 -46.942633 36.065610 6779.7226 80639154. 0.0092559828 0.11046123 -47.002556 35.965737 6781.7585 76077848. 0.0054416949 0.11539913 -47.067110 35.860622 6783.7943 72786638. 0.0015707274 0.12033702 -47.135575 35.751080 6785.8302 68046842. -0.0024933990 0.12527491 -47.199638 35.644932 6787.8661 66680487. -0.0067331142 0.13021281 -47.255567 35.545058 6789.9020 66935747. -0.011941729 0.13515070 -47.311496 35.445185 6791.9378 64719260. -0.025647261 0.14008859 -47.374194 35.333225 6793.9737 63269094. -0.020576827 0.14502649 -47.438104 35.219099 6796.0096 57447260. -0.0050729003 0.14996438 -47.496762 35.114352